Towel bar



FIG. 1 is a perspective view of a towel bar showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof; the left side view being a mirror image; and,

FIG. 4 is a top view thereof, the bottom view being a reverse image (top to bottom).

The rear view is omitted and forms no part of the claimed design.

The dotted lines shown in FIGS. 1 and 2 represent boundaries between claimed and unclaimed subject matter and form no part of the claimed design. 

The ornamental design for a towel bar, as shown and described. 